Global Patent Index - EP 1323708 A1

EP 1323708 A1 20030702 - Method for producing carbamates and method for producing isocyanates

Title (en)

Method for producing carbamates and method for producing isocyanates

Title (de)

Verfahren zur Herstellung von Carbamaten und Verfahren zur Herstelung von Isocyanaten

Title (fr)

Procédé de fabrication de carbamates et procédé de production d'isocyanates

Publication

EP 1323708 A1 20030702 (EN)

Application

EP 02028985 A 20021227

Priority

JP 2001398911 A 20011228

Abstract (en)

A method for producing carbamates that enables carbamates to be produced at low costs, with high selectivity and high yield, and in a simple manner, and a method for producing isocyanates that enables isocyanates industrially used to be produced by using the carbamates obtained by the carbamates producing method. Nonaromatic amine selected from the group consisting of aliphatic amine, alicyclic amine, and aralkyl amine is allowed to react with alkylaryl carbonate to thereby produce carbamates. Also, the carbamates thus obtained are thermally decomposed to thereby produce isocyanates. When carbamates are produced in this method, alkyl carbamates can be obtained with high selectivity and at high yield by using simple equipment. Also, when isocyanates are produced in this method, polyisocyanates used industrially as the raw material of polyurethane can be produced in a simple manner and with efficiency.

IPC 1-7

C07C 263/04; C07C 269/04; C07C 265/04; C07C 265/08; C07C 271/06; C07C 271/12; C07C 271/22

IPC 8 full level

C07C 263/04 (2006.01); C07C 271/12 (2006.01); C07C 271/20 (2006.01); C07C 271/22 (2006.01); C07C 271/24 (2006.01); C07C 319/20 (2006.01); C07C 265/04 (2006.01); C07C 265/14 (2006.01); C07C 323/43 (2006.01)

CPC (source: EP KR US)

C07C 263/04 (2013.01 - EP US); C07C 269/04 (2013.01 - KR); C07C 271/12 (2013.01 - EP US); C07C 271/20 (2013.01 - EP US); C07C 271/22 (2013.01 - EP US); C07C 271/24 (2013.01 - EP US); C07C 319/20 (2013.01 - EP US); C07C 2601/14 (2017.04 - EP US)

Citation (search report)

  • [X] US 5789614 A 19980804 - YAGII TOYOKAZU [JP], et al
  • [X] US 5914428 A 19990622 - YAGII TOYOKAZU [JP], et al
  • [X] EP 0391473 A1 19901010 - ENICHEM SINTESI [IT]
  • [X] EP 0902014 A1 19990317 - UBE INDUSTRIES [JP]
  • [X] US 3763217 A 19731002 - BRILL W
  • [X] US 4330479 A 19820518 - MERGER FRANZ, et al
  • [X] US 4003938 A 19770118 - KOENIG KARL-HEINZ, et al
  • [X] US 3919279 A 19751111 - ROSENTHAL RUDOLPH, et al
  • [X] US 4290970 A 19810922 - MERGER FRANZ, et al
  • [X] WO 8705600 A1 19870924 - RHONE POULENC BV [NL] & ANDERSON, MCGREGOR: "t-Butyloxycarbonylamino acids and their use in peptide synthesis", J. AMER. CHEM. SOC., vol. 79, 1957, pages 6180 - 6183 & HEUBAUM, U. AND NOYES, W. A.: "Optically active diazo compounds. Diazocamphane", J. AMER. CHEM. SOC., vol. 52, 1930, pages 5070 - 5078 & BROADBENT, W. ET AL, J. CHEM. SOC. C, 1967, pages 2632 - 2636 & OHME, R.; PREUSCHHOF, H., J. PRAKT. CHEM., no. 313, 1971, pages 626 - 635 & HYRUP, B.; EGHOLM, M., ROLLAND, M.; NIELSEN, P. ET AL., J. CHEM. SOC. CHEM. COMMUN., vol. 6, 1993, pages 518 - 519 & KURITA, M. ET AL., J. ANTIBIOT. SER. A, vol. 19, 1966, pages 243 - 249 & CHEM. NAT. COMPD. (ENGL. TRANSL.), vol. 11, 1975, pages 457 - 458 & BERLIN, P.A.; TIGER, R. P. ET AL., J. GEN. CHEM. USSR (ENGL. TRANSL.), vol. 60, no. 9.2, 1990, pages 1909 - 1915 & MIKHEEV, V. V.; SVETHAKOV, N. V.; GARIPOV, R. M., J. ORG. CHEM. USSR (ENGL. TRANSL.), vol. 18, 1982, pages 215 - 220 & SEOUD, M. AND SEOUD, O., J. ORG. CHEM., vol. 46, no. 13, 1981, pages 2686 - 2690 & LUEBKE, K.; SCHROEDER, E., JUSTUS LIEBIGS ANN. CHEM., no. 692, 1966, pages 237 - 240 & PITTELKOV, M.; LEWINSKY, R. ET AL., SYNTHESIS, vol. 15, 2002, pages 2195 - 2202
  • [X] DATABASE CROSSFIRE BEILSTEIN [online] Beilstein Institut zur Förderung der Chemischen Wissenschaften, Frankfurt am Main, DE; XP002236978, retrieved from BEILSTEIN Database accession no. rid 199668
  • [X] DATABASE CROSSFIRE BEILSTEIN [online] Beilstein Institut zur Förderung der Chemischen Wissenschaften, Frankfurt am Main, DE; XP002236979, retrieved from BEILSTEIN Database accession no. rid 318418
  • [X] DATABASE CROSSFIRE BEILSTEIN [online] Beilstein Institut zur Förderung der Chemischen Wissenschaften, Frankfurt am Main, DE; XP002236980, retrieved from BEILSTEIN Database accession no. rid 996900; rid 997052; rid 997377
  • [X] DATABASE CROSSFIRE BEILSTEIN [online] Beilstein Institut zur Förderung der Chemischen Wissenschaften, Frankfurt am Main, DE; XP002236981, retrieved from BEILSTEIN Database accession no. rid 906312
  • [X] DATABASE CROSSFIRE BEILSTEIN [online] Beilstein Institut zur Förderung der Chemischen Wissenschaften, Frankfurt am Main, DE; XP002236982, retrieved from BEILSTEIN Database accession no. rid 2076662
  • [X] DATABASE CROSSFIRE BEILSTEIN [online] Beilstein Institut zur Förderung der Chemischen Wissenschaften, Frankfurt am Main, DE; XP002236983, retrieved from BEILSTEIN Database accession no. rid 997581
  • [X] DATABASE CROSSFIRE BEILSTEIN [online] Beilstein Institut zur Förderung der Chemischen Wissenschaften, Frankfurt am Main, DE; XP002236984, retrieved from BEILSTEIN Database accession no. rid 996905
  • [X] DATABASE CROSSFIRE BEILSTEIN [online] Beilstein Institut zur Förderung der Chemischen Wissenschaften, Frankfurt am Main, DE; XP002237043, retrieved from BEILSTEIN Database accession no. rid 3306051
  • [X] DATABASE CROSSFIRE BEILSTEIN [online] Beilstein Institut zur Förderung der Chemischen Wissenschaften, Frankfurt am Main, DE; XP002237044, retrieved from BEILSTEIN Database accession no. rid 2675661 and rid 1839510
  • [X] DATABASE CROSSFIRE BEILSTEIN [online] Beilstein Institut zur Förderung der Chemischen Wissenschaften, Frankfurt am Main, DE; XP002237045, retrieved from BEILSTEIN Database accession no. rid 1831701
  • [X] DATABASE CROSSFIRE BEILSTEIN [online] Beilstein Institut zur Förderung der Chemischen Wissenschaften, Frankfurt am Main, DE; XP002237046, retrieved from BEILSTEIN Database accession no. rid 998442
  • [PX] DATABASE CROSSFIRE BEILSTEIN [online] Beilstein Institut zur Förderung der Chemischen Wissenschaften, Frankfurt am Main, DE; XP002237047, retrieved from BEILSTEIN Database accession no. rid 9121229

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SI SK TR

DOCDB simple family (publication)

EP 1323708 A1 20030702; EP 1323708 B1 20090318; AT E425960 T1 20090415; CN 1281580 C 20061025; CN 1432563 A 20030730; DE 60231588 D1 20090430; ES 2321814 T3 20090612; KR 100895474 B1 20090506; KR 20030057466 A 20030704; PT 1323708 E 20090511; SG 115512 A1 20051028; TW 200301240 A 20030701; TW I323729 B 20100421; US 2003125579 A1 20030703; US 7122697 B2 20061017

DOCDB simple family (application)

EP 02028985 A 20021227; AT 02028985 T 20021227; CN 02159318 A 20021226; DE 60231588 T 20021227; ES 02028985 T 20021227; KR 20020085132 A 20021227; PT 02028985 T 20021227; SG 200207787 A 20021220; TW 91137418 A 20021226; US 32718002 A 20021224